Have all diesel engine improvements since 1997 been emissions related?

[Pit Bull]

Seems like all of the changes to diesel engines since 1997 have been not to improve the engine but to protect the environment?? I just get a kick out of how the manufactures package their advertising to make us think they are doing us a favor selling us a more expensive vehicle, that is more expensive because of all of the emission requirements. Am I wrong???

 

[Joe G.]

I think you hit it right on the head. The P7100 pump is the power pump. I don't know if the 24 valve head flows better or not in stock condition. Even if it does I wonder if the improvement actually results in more power. Maybe Joe Donnelly could comment on this one.

 

[Pit Bull]

The only improvement in the CTD engine was the new cover to eliminate the KDP problem. Everything else is a smoke screen for emissions. What's worse is that many of the emission improvements were not an improvement new lift pump, VP44 and that just on the 24 valve.

 

[RustyJC]

Insofar as a stock truck is concerned, however, the reductions in emissions were also accompanied by increases in BHP and torque! For the "normal" non-TDR owner, I'd consider that an improvement!



Rusty